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Method of adjusting filter parameters and an associated playback system

  • US 7,409,066 B2
  • Filed: 06/06/2003
  • Issued: 08/05/2008
  • Est. Priority Date: 06/06/2002
  • Status: Expired due to Fees
First Claim
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1. A method of adjusting at least one filter parameter of at least one filter unit associated with a playback system for an audio signal, comprising:

  • (a) determining an acoustic frequency response;

    (b) determining a cutoff frequency below which a sound pressure falls below a sound pressure threshold level based on an average sound pressure; and

    (c) automatically adjusting the at least one filter parameter so that a mid-frequency of the filter unit is just above the cutoff frequency.

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